From patchwork Mon Dec 9 09:40:50 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: panchaxari X-Patchwork-Id: 3309721 Return-Path: X-Original-To: patchwork-linux-arm-msm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id B2FF49F384 for ; Mon, 9 Dec 2013 09:41:24 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 67A7A20254 for ; Mon, 9 Dec 2013 09:41:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2BADF201B7 for ; Mon, 9 Dec 2013 09:41:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760826Ab3LIJlU (ORCPT ); Mon, 9 Dec 2013 04:41:20 -0500 Received: from mail-pb0-f50.google.com ([209.85.160.50]:53537 "EHLO mail-pb0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753326Ab3LIJlT (ORCPT ); Mon, 9 Dec 2013 04:41:19 -0500 Received: by mail-pb0-f50.google.com with SMTP id rr13so5079797pbb.23 for ; Mon, 09 Dec 2013 01:41:18 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=y03S92Q26pzqBQEfuicOaeqi3SZ9ydbRvchr0Dz2EHU=; b=WDLCE4xQ/W/o5qx5TPJBEZ6UTnedHJlv9lzyarm2cOl7dCh1wHvmoSbv/c72xlxRKX /mPvQLPUGEXfQHAor8dVztrPZGoRJngdghV2QL/+eRGextcB+bStYpBl8BvR+8jLgrCr 5802/TC9gpkWgCy3P3p9XcQDtBG/I2SJn++fnc9PgBGLHEkTBJACB1cDJStZtuA3agBi H1+VtKXOR7J+uZGD7dXKhMICTlJBRdjFIeE/s58ZGl+D5rJXD6NW1vOqpvkRFS4rmcmP zs4xaUFOOmhrE9ADPYHSgAMsUd9ptN3bm2DOgASMrqHIzOJoSrqUKYv7eF+2JDMZx4dt 1Lgg== X-Gm-Message-State: ALoCoQmqUbZ3mNfKn0PbYIvUKQSzYinf+/LHnqcZYuyp0J3PhpSFWcHF+7dh2zDsNXtaEAxk1AHP X-Received: by 10.68.217.194 with SMTP id pa2mr19595331pbc.1.1386582078840; Mon, 09 Dec 2013 01:41:18 -0800 (PST) Received: from si-panchaxari.LGE.NET ([203.247.149.152]) by mx.google.com with ESMTPSA id oj6sm23243162pab.9.2013.12.09.01.41.12 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 09 Dec 2013 01:41:18 -0800 (PST) From: panchaxari To: linus.walleij@linaro.org Cc: patches@linaro.org, linaro-kernel@lists.linaro.org, panchaxari.prasannamurthy@linaro.org, David Brown , Daniel Walker , Bryan Huntsman , Russell King , linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH CFT] ARM:MSM: Enable ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR default Date: Mon, 9 Dec 2013 15:10:50 +0530 Message-Id: <1386582050-21375-1-git-send-email-panchaxari.prasannamurthy@linaro.org> X-Mailer: git-send-email 1.7.10.4 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Spam-Status: No, score=-6.1 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_WEB, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR have been enabled as default configs to MSM platform Introduction of PHYS_VIRT config as default would enable phy-to-virt and virt-to-phy translation function at boot and module loading time and enforce dynamic reallocation of memory. AUTO_ZRELADDR config would enable calculation of kernel load address at run time. PHYS_VIRT config is mutually exclusive to XIP_KERNEL, XIP_KERNEL is used in systems with NOR flash devices, and ZRELADDR config is mutually exclusive to ZBOOT_ROM. CFT::Call For Testing Requesting maintainers of MSM platforms to evaluate the changes on the board and comment, as I dont have the board for testing and also requesting an ACK Signed-off-by: panchaxari Cc: David Brown Cc: Daniel Walker Cc: Bryan Huntsman Cc: Russell King Cc: Linus Walleij Cc: linux-arm-msm@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Tested-by: Courtney Cavin --- ARCH_MSM supports for Qualcomm MSM/QSD based systems. This runs on the apps processor of the MSM/QSD and depends on a shared memory interface to the modem processor which runs the baseband stack and controls some vital subsystems like clock and power control. Snapdragon is based on ARMv7 instruction set. And supports Random memory devices like DDR1, LPDDR2 and LPDDR3. And storage memory devices like NAND, eMMC. Below lkml link is a quoting by Russell which clears the concept of PHYS_VIRT and ZRELADDR --------------------------------------------------- https://lkml.org/lkml/2011/10/14/434 ------------------------------------------------- --- arch/arm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 13621ed..3b77864 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -638,6 +638,8 @@ config ARCH_PXA config ARCH_MSM bool "Qualcomm MSM" select ARCH_REQUIRE_GPIOLIB + select ARM_PATCH_PHYS_VIRT + select AUTO_ZRELADDR select CLKSRC_OF if OF select COMMON_CLK select GENERIC_CLOCKEVENTS